221412504732466 has 8 divisors (see below), whose sum is σ = 346558703059584. Its totient is φ = 105892937045940.

The previous prime is 221412504732413. The next prime is 221412504732467. The reversal of 221412504732466 is 664237405214122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (221412504732467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2406657660090 + ... + 2406657660181.

It is an arithmetic number, because the mean of its divisors is an integer number (43319837882448).

Almost surely, 2^{221412504732466} is an apocalyptic number.

221412504732466 is a deficient number, since it is larger than the sum of its proper divisors (125146198327118).

221412504732466 is a wasteful number, since it uses less digits than its factorization.

221412504732466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813315320296.

The product of its (nonzero) digits is 3870720, while the sum is 49.

Adding to 221412504732466 its reverse (664237405214122), we get a palindrome (885649909946588).

The spelling of 221412504732466 in words is "two hundred twenty-one trillion, four hundred twelve billion, five hundred four million, seven hundred thirty-two thousand, four hundred sixty-six".